Positioning device for machining cross axle hole of differential mechanism

Abstract

The utility model discloses a positioning device for differential cross axle hole processing, which comprises a positioning mechanism and a differential arranged on the upper surface of the positioning mechanism, the positioning mechanism comprises a die holder component and a positioning component arranged in the middle of the upper surface of the die holder component, and a plurality of pressing components for fixing the differential are mounted on the upper surface of the die holder component. The differential positioning and clamping mechanism is simple in structure, has the advantages of being rapid, reliable and the like when used for positioning and clamping a differential, machining of a cross shaft hole of the differential can be completed on horizontal machining center equipment, the product machining posture is that the axis is vertical, an ejector pin and a bolt are not needed for fixing, a product is rapidly pressed through a pressing plate, clamping actions are few, and machining efficiency is high. Compared with a vertical machining center, the spindle of the horizontal machining center has higher rigidity and tool changing speed, so that the machining efficiency of the horizontal machining center on the cross shaft hole is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of differential processing, in particular to a positioning device for processing a differential cross shaft hole. Background Art

[0002] As an important part of the drive system, the differential mainly cooperates with the forklift steering system to achieve differential matching of the inner and outer wheel speeds when the vehicle turns. Due to the low efficiency and high labor intensity of the current clamping and processing of the cross shaft hole of this product. Figure 8 As shown in the figure, the original differential cross shaft hole processing adopts vertical processing, with the fourth axis and tailstock ejector. First, during the processing of the cross shaft hole (holes are distributed in 4 vertical directions), the switching time between holes is long, and the total time is about 20 seconds. Second, the product processing posture is horizontal axis, which leads to the need to add ejector when clamping the product, and the differential and the mold base need to be fixed by bolts, resulting in low clamping efficiency. Therefore, a positioning device for differential cross shaft hole processing is proposed. Utility Model Content

[0003] The utility model aims to provide a positioning device for machining a differential cross shaft hole to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning device for machining a differential cross shaft hole, comprising a positioning mechanism and a differential arranged on the upper surface of the positioning mechanism, the positioning mechanism comprising a die base component, a positioning component arranged in the middle of the upper surface of the die base component, and a plurality of clamping components for fixing the differential are installed on the upper surface of the die base component;

[0005] The clamping component includes a base installed on the upper surface of the mold base component, a pressure plate arranged above the base for fixing the differential, the pressure plate movably sleeved on the outer peripheral surface of the double-headed screw, the end of the double-headed screw is fixed on the upper surface of the base, the pressure plate and the base are connected by a support rod, the threaded sleeve on the outer wall of the double-headed screw is provided with a shoulder nut located above the pressure plate, and a spring sleeved on the outside of the double-headed screw to assist the pressure plate in resetting is provided between the pressure plate and the base.

[0006] As a further solution of the utility model: the mold base component includes a mold base and hanging rings installed at four end corners of the upper surface of the mold base.

[0007] As a further solution of the utility model: a countersunk hole is opened in the middle of the upper surface of the mold base, a positioning block is installed on the upper surface of the mold base along the side of the countersunk hole, and two side walls of the mold base are provided with limiting grooves that match the side positioning backrests of the horizontal machining center workbench.

[0008] As a further solution of the utility model: the positioning component includes a positioning ring, the end face of the positioning ring is provided with a positioning countersunk hole matching the differential, and the inner wall of the positioning countersunk hole is installed with a positioning pin that limits the differential, the inner wall of the positioning countersunk hole is provided with a plurality of through holes that penetrate the positioning ring, and the plurality of through holes are provided with M12 bolts threadedly connected to the mold base, the end face of the positioning ring away from the positioning countersunk hole is provided with a boss, the end face of the positioning ring is provided with a positioning groove, and the boss and the positioning groove are on the same side.

[0009] As a further solution of the utility model: one end of the support rod is movably connected to the pressure plate, and the other end of the support rod is connected to the base through an M16 nut.

[0010] As a further solution of the utility model: a plurality of M10 bolts penetrating the base and threadedly connected to the mold base are installed on the surface of the base.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. By rotating the shoulder nut clockwise along the double-headed screw, one end of the pressure plate is driven downward, thereby realizing the downward transmission of force and the compression of the differential. The main function of the spring is that when the pressure plate is loosened, the nut rotates counterclockwise and moves upward, and the spring force is used to lift the pressure plate, so that the pressure plate is disengaged from the pressed workpiece, which greatly improves the efficiency of differential assembly and positioning.

[0013] 2. This component is fast and reliable in positioning and clamping the differential. This mechanism can realize the processing of the differential cross shaft hole on the horizontal machining center equipment. The product processing posture is vertical axis, no need for ejector and bolt fixing, the product can be quickly clamped by the pressure plate, and the clamping action is less, labor-saving, and the clamping efficiency can be significantly improved. The spindle of the horizontal machining center has higher rigidity and tool change speed than the vertical machining center, which makes the horizontal machining center more efficient in processing the cross shaft hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the differential and positioning mechanism combination of the utility model;

[0015] Figure 2 This is a schematic diagram of the positioning mechanism of the utility model;

[0016] Figure 3 This is a schematic diagram of the mold base components of the utility model;

[0017] Figure 4 This is a schematic diagram of the end face of the positioning component of the utility model;

[0018] Figure 5 This is a schematic diagram of another end face of the positioning component of the utility model;

[0019] Figure 6 This is a schematic diagram of the clamping component of the utility model;

[0020] Figure 7 This is a schematic diagram of the differential of the utility model;

[0021] Figure 8 It is a schematic diagram of the existing vertical machining center of the utility model;

[0022] Fig. 9 This is a schematic diagram of the horizontal machining center of the utility model;

[0023] In the figure:

[0024] 1. Differential; 11. Differential positioning outer circle; 12. Positioning pin hole;

[0025] 2. Positioning mechanism;

[0026] 21. mold base component; 211. mold base; 2111. countersunk hole; 2112. positioning block; 2113. limiting groove; 212. lifting ring;

[0027] 22. Positioning component; 221. Positioning ring; 222. Positioning countersunk hole; 223. Positioning pin; 224. M12 bolt; 225. Boss; 226. Positioning groove;

[0028] 23. Clamping component; 231. Base; 232. Pressing plate; 233. Double-headed screw; 234. Shoulder nut; 235. Support rod; 236. Spring; 237. M16 nut; 238. M10 bolt. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] A positioning device for processing a differential cross shaft hole is composed of a die base component 21, a positioning component 22, and a clamping component 23; the component is fast and reliable in positioning and clamping the differential 1. The mechanism can realize the processing of the differential cross shaft hole on a horizontal machining center. The product processing posture is vertical axis, no ejector and bolt fixing are required, and the product can be quickly clamped by a pressure plate 232.

[0031] See also Figure 1-9In the embodiment of the utility model, a positioning device for processing a differential cross shaft hole comprises a positioning mechanism 2 and a differential 1 arranged on the upper surface of the positioning mechanism 2, the differential 1 comprises a differential positioning outer circle 11 and a positioning pin hole 12 opened on the differential 1, the positioning mechanism 2 comprises a die base component 21, the die base component 21 is mainly used to realize the positioning connection between the positioning mechanism 2 and the processing equipment; a positioning component 22 arranged in the middle of the upper surface of the die base component 21, a plurality of clamping components 23 for fixing the differential 1 are installed on the upper surface of the die base component 21, the main function of which is to realize the clamping of the product to ensure that the position of the product during the processing process remains unchanged; the clamping component 23 comprises a base 231 installed on the upper surface of the die base component 21, a pressing plate 232 arranged above the base 231 for fixing the differential 1, the pressing plate 232 is movably sleeved on the outer peripheral surface of the double-headed screw 233, and a strip-shaped slide groove is opened on the pressing plate 232, and the pressing The plate 232 can move within the range limited by the strip slide groove. The end of the double-headed screw 233 is fixed to the upper surface of the base 231. The pressure plate 232 and the base 231 are connected by a support rod 235. The outer wall thread sleeve of the double-headed screw 233 is provided with a shoulder nut 234 located above the pressure plate 232. A spring 236 is provided between the pressure plate 232 and the base 231 and is sleeved on the outer side of the double-headed screw 233 to assist the pressure plate 232 in returning to its original position. Furthermore, when the shoulder nut 234 is in a state of being pressed, the pressure plate 232 is prevented from being pressed. 234 rotates clockwise along the double-headed screw 233 and moves downward, driving one end of the pressure plate 232 to move downward (the other end is in contact with the support rod 235, and the height of this end is fixed and does not move downward), thereby realizing the downward transmission of force (one end of the pressure plate 232 is pressed on the compressed differential 1). The function of the spring 236 is mainly to loosen the pressure plate 232, and the shoulder nut 234 rotates counterclockwise and moves upward, and the spring force is used to lift the pressure plate 232, so that the pressure plate 232 is disengaged from the compressed differential 1.

[0032] See also Figure 3 In one embodiment, in this embodiment, preferably, the mold base component 21 includes a mold base 211 and lifting rings 212 installed on the four end corners of the upper surface of the mold base 211, wherein the mold base 211 is the installation reference plate of the related parts of the positioning mechanism 2, and secondly the lifting ring 212 is the lifting point for lifting the positioning mechanism 2.

[0033] See also Figure 3 In one embodiment, in order to ensure the stable connection between the positioning mechanism 2 and the workbench, in this embodiment, preferably, a countersunk hole 2111 is opened in the middle of the upper surface of the mold base 211, and a positioning block 2112 is installed on the upper surface of the mold base 211 along the side of the countersunk hole 2111. The countersunk hole 2111 and the positioning block 2112 are used to position the positioning ring 221, and two side walls of the mold base 211 are opened with limiting grooves 2113 that match the side positioning backrest of the horizontal machining center workbench, so as to realize the precise positioning of the positioning mechanism 2 on the workbench.

[0034] See also Figure 4-5 In one embodiment, in order to position the differential 1, in this embodiment, preferably, the positioning component 22 includes a positioning ring 221, and the end surface of the positioning ring 221 is provided with a positioning countersunk hole 222 matching the differential 1, and the inner wall of the positioning countersunk hole 222 is installed with a positioning pin 223 for limiting the differential 1, and the positioning countersunk hole 222 and the positioning pin 223 are matched with the differential positioning outer circle 11 and the positioning pin hole 12 on the differential 1 to achieve the positioning of the differential 1 on the positioning mechanism 2, and the inner wall of the positioning countersunk hole 222 is provided with a plurality of through holes penetrating the positioning ring 221, and the plurality of through holes are provided with M12 bolts 224 threadedly connected to the die base 211, and the inner diameter of the through hole close to the die base 211 is smaller than the inner diameter of the other end of the through hole, and the inner diameter of the through hole close to the die base 211 is smaller than the M1 2 The maximum outer diameter of the bolt 224 is such that one end of the M12 bolt 224 can be fixed in the through hole and the other end can be connected to the die base 211, thereby realizing the connection between the die base 211 and the positioning ring 221. The end surface of the positioning ring 221 away from the positioning countersunk hole 222 is provided with a boss 225, and the end surface of the positioning ring 221 is provided with a positioning groove 226, and the boss 225 and the positioning groove 226 are on the same side. The main purpose is to realize the positioning of the positioning ring 221 on the die base 211 by matching the boss 225 and the positioning groove 226 with the countersunk hole 2111 and the positioning block 2112 on the die base 211 respectively. Secondly, the through hole allows the end of the M12 bolt 224 to smoothly pass through the positioning ring 221 and be threadedly connected to the die base 211 to realize the connection and fixation of the positioning ring 221 on the die base 211.

[0035] See also Figure 6 In one embodiment, in order to fix one end of the pressing plate 232 above the base 231 so that its height remains unchanged, in this embodiment, preferably, one end of the support rod 235 is movably connected to the pressing plate 232, and the other end of the support rod 235 is connected to the base 231 through an M16 nut 237. The support rod 235 is movably connected to the pressing plate 232, so that a certain range of movement can be performed while the height of one end of the fixed pressing plate 232 remains unchanged. Secondly, the support rod 235 is fixed to the base 231 through the M16 nut 237.

[0036] See also Figure 6 In one embodiment, in order to fix the base 231 on the upper surface of the mold base 211, in this embodiment, preferably, a plurality of M10 bolts 238 that penetrate the base 231 and are threadedly connected to the mold base 211 are installed on the surface of the base 231 to further ensure the stability of the connection between the base 231 and the mold base 211.

[0037] The working principle and use process of the utility model are as follows: first, the M12 bolt 224 is placed in the through hole to ensure that the die base component 21 and the positioning component 22 are tightly connected together. Then, the base 231 is fixed on the die base 211 using the M10 bolt 238. Then, the positioning mechanism 2 is hoisted to the horizontal machining center for installation using the lifting mechanism so that the limit groove 2113 is matched with the side positioning backing of the horizontal machining center workbench. Then, the differential 1 is placed above the positioning ring 221 so that the differential positioning outer circle 11 and the positioning pin on the differential 1 are aligned. The hole 12 is matched with the positioning countersunk hole 222 and the positioning pin 223, and then the shoulder nut 234 is rotated clockwise to move it downward along the double-headed screw 233 to drive one end of the pressure plate 232 to move downward, thereby realizing the downward transmission of force, thereby realizing the fixation of the differential 1, and then the cross-axis hole processing spindle is used to process the differential 1. After the processing is completed, the shoulder nut 234 is rotated counterclockwise and moved upward, and the spring force is used to lift the pressure plate 232, so that the pressure plate 232 is disengaged from the pressed differential 1, and finally the differential 1 is replaced by the staff.

[0038] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0039] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent changes made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A positioning device for machining a differential cross shaft hole, comprising a positioning mechanism (2) and a differential (1) arranged on the upper surface of the positioning mechanism (2), characterized in that: The positioning mechanism (2) comprises a die base component (21), a positioning component (22) arranged in the middle of the upper surface of the die base component (21), and a plurality of clamping components (23) for fixing the differential (1) are installed on the upper surface of the die base component (21); The clamping component (23) comprises a base (231) mounted on the upper surface of the mold base component (21), a pressure plate (232) arranged above the base (231) for fixing the differential (1), the pressure plate (232) being movably sleeved on the outer peripheral surface of the double-headed screw (233), the end of the double-headed screw (233) being fixed on the upper surface of the base (231), the pressure plate (232) and the base (231) being connected via a support rod (235), the outer wall of the double-headed screw (233) being threadedly sleeved with a shoulder nut (234) located above the pressure plate (232), and a spring (236) sleeved on the outer side of the double-headed screw (233) for assisting the pressure plate (232) in returning to its original position is arranged between the pressure plate (232) and the base (231).

2. The positioning device for machining a differential cross shaft hole according to claim 1, characterized in that: The mold base component (21) comprises a mold base (211) and hanging rings (212) installed at four end corners of the upper surface of the mold base (211).

3. The positioning device for machining a differential cross shaft hole according to claim 2, characterized in that: A countersunk hole (2111) is provided in the middle of the upper surface of the mold base (211), a positioning block (2112) is installed on the upper surface of the mold base (211) along the side of the countersunk hole (2111), and two side walls of the mold base (211) are provided with limiting grooves (2113) that match the side positioning backrests of the horizontal machining center workbench.

4. The positioning device for machining a differential cross shaft hole according to claim 3, characterized in that: The positioning component (22) comprises a positioning ring (221), the end surface of the positioning ring (221) is provided with a positioning countersunk hole (222) matching the differential (1), and the inner wall of the positioning countersunk hole (222) is provided with a positioning pin (223) for limiting the differential (1), the inner wall of the positioning countersunk hole (222) is provided with a plurality of through holes penetrating the positioning ring (221), and the plurality of through holes are provided with M12 bolts (224) threadedly connected to the mold base (211), the end surface of the positioning ring (221) away from the positioning countersunk hole (222) is provided with a boss (225), the end surface of the positioning ring (221) is provided with a positioning groove (226), and the boss (225) and the positioning groove (226) are located on the same side.

5. The positioning device for machining a differential cross shaft hole according to claim 1, characterized in that: One end of the support rod (235) is movably connected to the pressure plate (232), and the other end of the support rod (235) is connected to the base (231) via an M16 nut (237).

6. The positioning device for machining a differential cross shaft hole according to claim 2, characterized in that: A plurality of M10 bolts (238) penetrating the base (231) and threadedly connected to the mold base (211) are installed on the surface of the base (231).

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